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Tall cardinal

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In mathematics, a tall cardinal is a large cardinal κ that is θ-tall for all ordinals θ, where a cardinal is called θ-tall if there is an elementary embedding j : V → M with critical point κ such that j(κ) > θ and Mκ ⊆ M.

Tall cardinals are equiconsistent with strong cardinals.

References

  • Hamkins, Joel David (2009), "Tall cardinals", MLQ. Mathematical Logic Quarterly, 55 (1): 68–86, doi:10.1002/malq.200710084, ISSN 0942-5616, MR 2489293
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